The air dates for Season 4 are unusual because Fox split the season:
The season centers on "Scylla," a data card that holds the secrets of "The Company," the shadowy organization responsible for the brothers' torment. Michael, Lincoln, Sucre, Mahone, and a few surprising allies are forced into a covert government operation to steal Scylla and take down The Company once and for all. Meanwhile, Michael is dealing with a mysterious and life-threatening medical condition. prison break season 4 air date
June 27, 2017 (FOX)